Question

pack.
5) A, B, and C try to hit a target simultaneously
but independently. Their respective probabilities of hitting the target are 3/4, 1/2, 5/8 Find the probability that the target is hit exactly by one of them
​

Answer 1

Answer:

ANSWER

P-hits

Q-hits

R-?

PQ

′

R

′

+P

′

QR

′

+PQR

′

=

4

3

×

2

1

×

8

3

+

4

1

×

2

1

×

8

3

+

4

3

×

2

1

×

8

3

=

64

9+3+9

=

64

21

.